Lathe.



Patented Aug. 2|, 1900.

W. L. CHENEY.

No. 656,3l8.

L AT H E.

(Applicatiqn filed Dec. 30, 1898.)

(No Modal.)

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ATH Y' SPECIFICATION forming part of Letters Pateni; No. 356,31 8, datedAugust 21, 19196.

i ppiication tiled December 30, 1893. Serial No. 700,776. (No model.)

' To @ZZ whoml it may concern.-

Be it known that I, WALTER LEE CHENEY,

` a citizen ofthe United States, residing at Meriden, Connecticut, haveinvented a new and useful Improvementin Lathes, of which the followingis a specification.'

My invention relates to that class of lathes in which a plurality ofslides-e. g., a turretslide and a formiu g or cutoff slide-are used. Itis intended to secure more exact coperation between such slides,

In the accompanying drawings, Figure l represents in elevation a latheembodying my device. Fig. 1I is an enlarged cross-section on the line a;az, Fig. I. Fig. IH shows a modiiication. Fig. 1V yis a cross-sectionthrough the line y y, Fig. lli. Figs. V and Vi, in elevation7 showfurther modifications.

V1 designates a lathe-hed; 2, ahead; 3, a cross-slide; 4, a longitudinalslide-base; 5, a turret-hase; 51, a set-screw; 6, a cenneetingrodprovided with nutsl 6l 62 63 64; 7, an aetuating device providedwithhandle 7l; 8, Fig. VI, a sleeve. Y

In the example of -iny invention illustrated in Figs, and Il of thedrawings the lathebed l, head 2, cross-slide 8, longitudinal slidehlaso4, and turret or Tuonitorfy base 5 may be of any Well-known or desiredform. The slides 3 and 4 are gihhed to the lited l instead of beingclamped, as usual. if desired, the turret-hase 5 may he omitted ordemoved and a tool secured to the siide-hase Qin any customary manner. Aconnecting-red 6, which niay advantageously he screw threaded, passesfreely through the slides 3 ande and engages with an internal screw-thread in the head 2p Pairs of jam-nuts 6l, 62, 63, and 84. serve topermit relative longitudinal ad j 'ustnient of the slides 3 and 4 andwhen eet heine to iirmly couple them together as regards suchlongitudinal movement without checking the rotation of the rod 6therein. An actuating device".7 is shown as a pinion gearing with aworinkeyed on theiod 6. To the shaft-,of the pinion, which, as shown,journals on the slide 3, is secured ajlhandle or hand-wheel 7l. I i Theoperation of my device Will he clearly understood from an examination ofthe drawings., Lat-hes of this general type are largely` used to finishcastings of brass orv any other alloyor of metal. These castingsin'practiee vary in size and shape. It is necessary that the nishedpieces should be asi-exactly simif lar as possible. Because of theimperfection of the rough castings it is frequently necessary to movethe turret slide-base 4 toward or from the lathefhead 2. As one or aplu# rality of the tools nsed to finish the piecee. g., a knurl and acutting-od tool-are carf ried on the crossslide 5, this slide must havea movement in direction and distance corresponding to that of theforming-slide' 4. In using a lathe provided with mydevice the operatorby means of the hand-.wheel 71 screws the rod G more or less into thehead 2, and thereby adjusts both the siide and slidebase Lisimultaneously and similarly by a singie and simple operation.

It will of course he understood that the turret-hase 5 is longitndinally adjustable by any usual means (not shown in the drawings) onthe slide or hase et. The tools on the turret cron the hase 5 are thushroughtup to and retracted from the Work. The slide-base 4.-

serves as a stop to limit the forward mover.

ment of the turret-base 5 hy means of a setserew 5l, which strikesagainst the rear end of the hase i. v

Nhen the cross-slide and turret-tools are setv to iinish aparticnlar'patternof casting or the like7 the distance between theslides 3 1,

erster, hy rotating the handsvheel 7 i, is able I to adjust everytool onboth cross-slide and turret Without altering theirlcoaction on the pieceto he turned.

1n the torni of. my ill and lV of the drawings the connecting-rod. Gniaypass, vas before, freely through the slide 4, but has threadedengagement'with the crosslslide 3, nuts 62 63 64 being used to Theactuating adjust and secure the slides. device '7 is in this-oase apinion jonrnaled in the slide 4 and engaging with a rack on thelathe-hed 1. .l

devise showen .in Figs( loo It is obvious that the turning ofthe'handieg devioe 7 le here shown es o tia. oiled rod at til 1 end ofthe lathe-bed l engaging le 'ine ende-liee 4 end provided with'a n] idle7l.

ln llit.

olemped The com Y odell into the salido 3 and. uetztbly seemed in :ielee'i'e S, which passes longitudinally through tno slide Theeet-seroit' 5l on the toilet-baise ntikee egeioet a @top on the sleevetl ineveed of striking tno eldebeee e. lt. oleo-1: toet, as be for@ tholimit of forward movement of the Mimet e ie longitudinally :adjustedsyneifoaoueiy and eqoellywitli the cross-elide l have shown severalmodifications of my devi-ee to indicate that I am not limited in tlmepplieotion. of my invention to particular foizno construction.

it ill ot' oonree zlodeietood tliet the lon "iedi'oe-i adjiiietinent ofthe slides or stop enfzoleted le en adjustment relative tothe 2. heetile. ''i'ineeitlierot the pietre de- 13o longitudinally adi netztiole-2. g.,

iii-a et .WJ l

threaded rod provided with nuts for adjustebly coupling together es tolongitudinal movement said stop and the other of said tool- Ceix'yingpot-tions, substantiell y as described.

3:3. lo ela-the in combination a cross-slide, seeond tool-carrying slideadapted to manual longitudinal adjustment, it Stop by which the forwardmovement ol' Sayid second slide is limited, ineens as e rod foradjustably coupling 'together said cross-slide end said stop and ineenssubstantially as described for the longitudinal adjustment of saidcoupled p01'- tions.

4. ln a lathe in combination a. eross-slide, a-seoond tool-eeriyingslide adapted to manual longitudinal adjustment, astop by which theforward movement of seid Second slide is limeoii'oedffoz themammellongitedinal 75 meot of eeid'eonpled portions.

WALTER LEE EY.

